Tether has open-sourced its Bitcoin mining operating system, aiming to make mining operations more accessible and reduce dependence on paid management platforms, the company announced on February 3.
Tether chief executive Paolo Ardoino said the software, known as MiningOS (MOS), is now fully open source and released under the Apache 2.0 license, allowing anyone to use, modify, and distribute it freely.
In a post on X, Ardoino described MOS as a modular platform capable of supporting both small home miners and large industrial operations across multiple locations. The system features encrypted peer-to-peer networking, broad hardware compatibility, and local execution without reliance on centralized servers.
MOS was formally unveiled as an open-source project at the Plan ₿ Forum in San Salvador on February 2. It allows operators to manage Bitcoin mining infrastructure through a single interface, monitoring hardware performance, energy consumption, cooling systems, and site operations from one dashboard.
Unlike many commercial mining tools, MOS runs locally and uses peer-to-peer communication between devices, which Tether says improves reliability, resilience, and privacy. Its modular design allows users to customize functionality through independent components linked by a shared core system.
The platform is designed to operate on lightweight devices for small-scale setups while also supporting large deployments involving thousands of machines. Tether is also preparing a Mining SDK, which will enable developers to build custom tools and extensions on top of MOS, with final features shaped by community input.
By open-sourcing the software, Tether aims to reduce miners’ reliance on proprietary platforms such as Hive OS and Foreman, which often charge recurring fees. The company said the move could help smaller operators compete more effectively with large publicly listed mining firms.
The release aligns with Tether’s broader involvement in Bitcoin infrastructure. While the company scaled back some mining activity in late 2025 due to rising energy costs, it has continued to invest in software, network support, and mining projects that emphasize efficiency and renewable energy.
Tether has also expanded its direct Bitcoin exposure in recent years. Since 2023, the company has allocated a portion of its profits to Bitcoin as a strategic reserve. As of early 2026, Tether held approximately 96,185 BTC, valued at over $8 billion, making it one of the largest corporate Bitcoin holders globally.
The open-source launch of MOS could encourage wider collaboration on mining tools and standards, potentially lowering entry barriers at a time when mining costs and operational complexity remain high.
